diff --git a/lib/WebDriver/Session.php b/lib/WebDriver/Session.php
index e11cab4..497c10b 100644
--- a/lib/WebDriver/Session.php
+++ b/lib/WebDriver/Session.php
@@ -425,83 +425,96 @@ public function log()
     }
 
     /**
-     * {@inheritdoc}
+     * Inject a snippet of JavaScript into the page for execution in the context of the currently selected frame. (synchronous)
+     *
+     * @param array{script: string, args: array} $jsonScript
+     *
+     * @return mixed
      */
-    protected function getElementPath($elementId)
+    public function execute(array $jsonScript)
     {
-        return sprintf('%s/element/%s', $this->url, $elementId);
+        if (isset($jsonScript['args'])) {
+            $jsonScript['args'] = $this->serializeArguments($jsonScript['args']);
+        }
+
+        $result = $this->curl('POST', '/execute', $jsonScript);
+
+        return $this->unserializeResult($result);
     }
 
     /**
-     * @param array $args
+     * Inject a snippet of JavaScript into the page for execution in the context of the currently selected frame. (asynchronous)
      *
-     * @return array
+     * @param array{script: string, args: array} $jsonScript
+     *
+     * @return mixed
      */
-    private function prepareScriptArguments(array $args)
+    public function execute_async(array $jsonScript)
     {
-        foreach ($args as $k => $v) {
-            if ($v instanceof Element) {
-                $args[$k] = [Container::WEBDRIVER_ELEMENT_ID => $v->getID()];
-            } elseif (is_array($v)) {
-                $args[$k] = $this->prepareScriptArguments($v);
-            }
+        if (isset($jsonScript['args'])) {
+            $jsonScript['args'] = $this->serializeArguments($jsonScript['args']);
         }
 
-        return $args;
+        $result = $this->curl('POST', '/execute_async', $jsonScript);
+
+        return $this->unserializeResult($result);
     }
 
     /**
-     * @param mixed $data
-     *
-     * @return mixed
+     * {@inheritdoc}
      */
-    private function webDriverElementRecursive($data)
+    protected function getElementPath($elementId)
     {
-        $element = $this->webDriverElement($data);
-        if ($element !== null) {
-            return $element;
-        } elseif (is_array($data)) {
-            foreach ($data as $k => $v) {
-                $data[$k] = $this->webDriverElementRecursive($v);
-            }
-        }
-
-        return $data;
+        return sprintf('%s/element/%s', $this->url, $elementId);
     }
 
     /**
-     * Inject a snippet of JavaScript into the page for execution in the context of the currently selected frame. (synchronous)
+     * Serialize script arguments (containing web elements)
      *
-     * @param array{script: string, args: array} $jsonScript
+     * @see https://w3c.github.io/webdriver/#executing-script
      *
-     * @return mixed
+     * @param array $arguments
+     *
+     * @return array
      */
-    public function execute(array $jsonScript)
+    private function serializeArguments(array $arguments)
     {
-        if (isset($jsonScript['args'])) {
-            $jsonScript['args'] = $this->prepareScriptArguments($jsonScript['args']);
-        }
+        foreach ($arguments as $key => $value) {
+            // Potential compat-buster, i.e., W3C-specific
+            if ($value instanceof Element) {
+                $arguments[$key] = [Container::WEBDRIVER_ELEMENT_ID => $value->getID()];
+                continue;
+            }
 
-        $result = parent::execute($jsonScript);
+            if (is_array($value)) {
+                $arguments[$key] = $this->serializeArguments($value);
+            }
+        }
 
-        return $this->webDriverElementRecursive($result);
+        return $arguments;
     }
 
     /**
-     * Inject a snippet of JavaScript into the page for execution in the context of the currently selected frame. (asynchronous)
+     * Unserialize result (containing web elements)
      *
-     * @param array{script: string, args: array} $jsonScript
+     * @param mixed $result
      *
      * @return mixed
      */
-    public function execute_async(array $jsonScript)
+    private function unserializeResult($result)
     {
-        if (isset($jsonScript['args'])) {
-            $jsonScript['args'] = $this->prepareScriptArguments($jsonScript['args']);
+        $element = $this->webDriverElement($result);
+
+        if ($element !== null) {
+            return $element;
         }
 
-        $result = parent::execute_async($jsonScript);
+        if (is_array($result)) {
+            foreach ($result as $key => $value) {
+                $result[$key] = $this->unserializeResult($value);
+            }
+        }
 
-        return $this->webDriverElementRecursive($result);
+        return $result;
     }
 }